It appears that population rollback (family planning) is humanity’s — and Earth’s — only hope for a sustainable future. The planet held two billion people in the 1930s, which grew to over 7 billion today.
An excellent summary: Interview with David Paxton of World Population Balance on the “Connections” radio program on radio station KGNU, April 6, 2012 (audio archived at www.kgnu.org/connections).
See also this 5-minute Youtube video.
— Submitted by Anon